Patent US2143251A successfully refreshed from Google Patents.
US6982658B2
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Keypad layout for alphabetic symbol input
Assignee: Cerence Operating Co
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Filing: 2001-03-22
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Granted: 2006-01-03
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Expires: 2021-03-22
Abstract
Abstract Layouts for keypads are provided that have an improved combination of a regular of intuitive arrangement of alphabetic symbols of a language defined by letter characters of the Roman alphabet and an efficient distribution of the symbols to minimize input ambiguities. More particularly, the symbols are for the Pinyin alphabet which includes two main symbol groups thereof for forming Pinyin syllables. The various layouts employ a columnar-based arrangement for the symbols of the initial group. The symbols for the final group are parsed down to basic characters and are distributed in a row-based arrangement.
Inventors
- 👤 Jin Guo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0233; G06F3/0236; G06F3/018
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
90 words
A keypad layout for a hand-held electronic device comprising: a plurality of keys, including keys “ 1 ” through “ 9 ” and “ 0 ”, configured for data entry of numbers and symbols of a Romanized Chinese phonetic alphabet, each key representing at least one symbol of a syllable initial symbol group or a syllable semi-initial symbol group of the Romanized Chinese phonetic alphabet, wherein all keys representing symbols of the syllable initial symbol group are grouped separate from all keys representing symbols of the syllable semi-initial symbol group.
Claim 2
Dependent Claim
90 words
A keypad layout for a hand-held electronic device comprising: a plurality of keys, including keys “ 1 ” through “ 9 ” and “ 0 ”, configured for data entry of numbers and symbols of a Romanized Chinese phonetic alphabet, each key representing at least one symbol of a syllable initial symbol group or a syllable semi-initial symbol group of the Romanized Chinese phonetic alphabet, wherein all keys representing symbols of the syllable initial symbol group are grouped separate from all keys representing symbols of the syllable semi-initial symbol group.
Claim 3
Dependent Claim
16 words
The keypad of claim 1 , wherein the plurality of keys includes keys “*” and “#”.
Claim 4
Dependent Claim
24 words
The keypad of claim 1 , wherein one key of the plurality of keys is solely designated for symbols of the semi-initial symbol group.
Claim 5
Dependent Claim
24 words
The keypad of claim 1 , wherein at least a portion of the plurality of keys represents symbols of a syllable final symbol group.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-01-02 | 2009-07-04 | 2010-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-01-02 | 2013-07-04 | 2014-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-01-02 | 2017-07-04 | 2018-01-03 | $7700.00 | Window Closed / Lapsed |